What is CVE-2025-66911?

CVE-2025-66911 is a medium-severity vulnerability in Turms-Im Turms, classified under Improper Access Control. CVSS score: 6.5/10. Published 2025-12-19.

How severe is CVE-2025-66911?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Turms-Im Turms

CVE-2025-66911

Turms IM Server v0.10.0-SNAPSHOT and earlier contains a broken access control vulnerability in the user online status query functionality. The handleQueryUserOnlineStatusesRequest() method in UserServiceController.java allows any authenticated user to query the online status, device information, and login timestamps of arbitrary users without proper authorization checks.

EPSS: 0.003 (21.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Turms-im Turms — versions 0.10.0-snapshot
N/a — versions n/a

Weakness classification (CWE)

References

cve@mitre.org (Product)
cve@mitre.org (Product)
cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-66911?: CVE-2025-66911 is a medium-severity vulnerability in Turms-Im Turms, classified under Improper Access Control. CVSS score: 6.5/10. Published 2025-12-19.
How severe is CVE-2025-66911?: Medium severity. CVSS v3 base score is 6.5 out of 10.